[1]高莉宁,贾秦龙,晏永,等.SBS改性微表处专用两性沥青乳化剂表征及应用效果评价[J].郑州大学学报(工学版),2015,36(05):30.[doi:10.3969/ j. issn.1671 -6833.2015.05.007]
　GA0 Li-ning,JIA Qin-long,YAN Yong,et al.Characterization and Evaluation Applications of Special Gender AsphaltEmulsifier for SBS Modified Micro-surfacing[J].Journal of Zhengzhou University (Engineering Science),2015,36(05):30.[doi:10.3969/ j. issn.1671 -6833.2015.05.007]
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SBS改性微表处专用两性沥青乳化剂表征及应用效果评价()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
36
期数:
2015年05期
页码:
30
栏目:
出版日期:
2015-11-29

文章信息/Info

Title:
Characterization and Evaluation Applications of Special Gender AsphaltEmulsifier for SBS Modified Micro-surfacing
作者:
高莉宁; 贾秦龙; 晏永; 郭涛; 夏慧芸; 陈华鑫
长安大学交通铺面材料教育部工程研究中心,陕西西安710064
Author(s):
GA0 Li-ning; JIA Qin-long; YAN Yong; GUO Tao; XIA Hui-yun; CHEN Hua-xin
Engincering Research Center of Ministry of Education for Transportation Materials， Chang’an University，Xi’an 710061, Chi-na
关键词:
沥青乳化剂; 微表处; 改性乳化沥青; 油酸
Keywords:
asphalt emulsifier; micro-surfacing; modified emulsified asphalt; oleic acid
分类号:
U418.6
DOI:
10.3969/ j. issn.1671 -6833.2015.05.007
文献标志码:
A
摘要:
微表处中沥青乳化剂的相关性能对改性乳化沥青及稀浆混合料性能至关重要.笔者利用油酸、多胺、有机氯酸以及氯醇等为原料合成了两性沥青乳化剂,分析了乳化剂的红外光谱、表面张力、亲水亲油平衡值(HLB值);测试了5% SBS掺量改性乳化沥青的性质和稀浆混合料的技术指标.结果显示:乳化剂的临界胶束浓度为2.63× 10~ mol/L,此时表面张力46.11 mN/m;乳化剂HLB值为12.7;当乳化剂用量为1.5%时,改性乳化沥青蒸发残留物的25℃针入度为6.2 mm,软化点为78.5 ℃,5℃延度为35 cm;微表处混合料60 min 凝聚力值达到2.4 N·m,为中度成型,浸水1 h和浸水6 h湿轮磨耗值均满足规范要求.
Abstract:
The properties of asphalt emulsifier in micro-surfacing are an issue of great importance for modifiedemulsified asphalt and mixture performance. In this paper,a kind of zwitterionic surfactant which can be usedfor asphalt emulsifier was synthesized by using oleic acid,polyamine,acid and alcohol containing chloride asstarting materials.The synthesized asphalt emulsifier was characterized by means of FT-IR,surface tensionand the calculated hydrophilic- lipophilic balance ( HLB) value. The properties of 5% SBS modified emulsionasphalt and the technical parameters of slurry mixtures were also tested. The results showed that the criticalmicelle concentration (CMC) of emulsifier was 2.63 ×10~3 mol/ L, the surface tension at CMC was 46.1l mV/m,and the calculated HLB value was 12.7. Furthermore, the modified emulsion asphalt showed the best perform-ance when the concentration of emulsifier was 1.5%,and the modified asphalt emulsion evaporation residue25 ℃ penetration was 6.2 mm,softening point was 78.5 ℃ , 5 ℃C ductility was 35 cm;micro-surfacing mix-ture 60 min cohesion value reached 2.4 N · m,moderate molding,1 h and 6 h soaking wet wheel abrasionvalues were to meet regulatory requirements.
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